Recent research conducted by Aristo Cast in Almont, MI and researchers from academia has produced the development of refractory powder recipes that permits the fabrication of highly detailed investment casting cores utilizing 3D powder printing technology. This invention will allow CAD programmers to design and transfer core files directly to commercially available 3D powder printers, creating useable refractory cores capable of withstanding temperatures up to a 3000°F range. This new process offers the investment caster an additional tool that will reduce manufacturing lead times as well as minimize tooling costs typically associated with the fabrication of investment casting cores.